Search results
Results from the WOW.Com Content Network
The International Telecommunication Union (ITU) publishes a recommendation entitled Notation for national and international telephone numbers, e-mail addresses and Web addresses. Recommendation E.123 specifies the format of telephone numbers assigned to telephones and similar communication endpoints in national telephone numbering plans.
E.164 defines a general format for international telephone numbers. Plan-conforming telephone numbers are limited to only digits and to a maximum of fifteen digits. [ 1 ] The specification divides the digit string into a country code of one to three digits, and the subscriber telephone number of a maximum of twelve digits.
National telephone numbers are defined by national or regional numbering plans, such as the European Telephony Numbering Space, the North American Numbering Plan (NANP), or the UK number plan. Within a national numbering plan, a complete destination telephone number is typically composed of an area code and a subscriber telephone number.
Microsoft canonical address format for telephone numbers [2] [3] derives from E.123 international notation by allowing explicit indication of area code with parentheses. The canonical format is used by the Telephony API (TAPI) , a Windows programming interface for dial-up fax, modem, and telephone equipment.
Country codes are defined by the International Telecommunication Union (ITU) in ITU-T standards E.123 and E.164. The prefixes enable international direct dialing (IDD). Country codes constitute the international telephone numbering plan. They are used only when dialing a telephone number in a country or world region other than the caller's.
IDDD was implemented through extensive modifications in the switching systems to accommodate the international open numbering plan with seven to twelve digits in the national telephone numbers. [53] Access to the international network is facilitated by the dialing prefix 011, after which the country code and the national telephone number are ...
Connect an access number to AOL Dialer. 1. Click Connection Settings from the mail AOL Dialer page and follow the prompts. 2. Enter your location and connection type and click Next. 3. Select your dialing options and click Next. 4. Enter your area code and click Next. 5. Select 2-3 access phone numbers and click Next.
Universal International Shared Cost Number (UISCN) is part of the E.164 telephone numbering space that includes international telephone numbers where the call costs are split between the caller and the called. An international shared-cost number allows the calling party to make the call at national rates, since the costs of any international ...